Patents
Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484)
11/1999
11/17/1999CN1235151A Process for preparation of shikimic acid and its derivatives
11/17/1999CN1235141A Process for preparing organic compound
11/17/1999CN1046493C Method for inhibiting premature polymerization of vinyl aromatic monomers
11/16/1999US5986075 Coupling a desalted organic diazonium compound with a coupling compound
11/16/1999US5986044 Polyureas, polycarbonates, polyesters and polyamide copolymers
11/11/1999WO1999057123A1 Purification of carboxaldehyde
11/11/1999CA2330621A1 Purification of carboxaldehyde
11/10/1999EP0954373A1 Device for stirring and aerating a liquid and eliminating the foam in a vat for treating this liquid
11/10/1999CN1234177A Amino-acetonitrile derivative, pesticides containing same for farm and gardening and use thereof
11/09/1999CA2003597C Polyvalent metallic salts of sulfure derivatives of benzyliden-camphor and use to protect the skin against uv
11/04/1999WO1999055668A1 3-arylphenyl sulfide derivatives and insecticides and miticides
11/04/1999WO1999055666A1 Conversion of a hydroxy group in certain alcohols into a fluorosulfonate ester or a trifluoromethylsulfonate ester
11/04/1999WO1999055663A1 Inhibitors of impdh enzyme
11/04/1999WO1999031074A3 ((cyclo)alkyl substituted)-.gamma.-aminobutyric acid derivatives (=gaba analogues), their preparation and their use in the treatment of neurological disorders
11/04/1999CA2330467A1 Conversion of a hydroxy group in certain alcohols into a fluorosulfonate ester or a trifluoromethylsulfonate ester
11/03/1999EP0953565A2 Aminoacetonitrile derivative, agricultural and horticultural insecticide containing the same, and use thereof
11/03/1999EP0700900B1 Process for producing acyloxybenzenesulfonic acid or salt thereof
11/03/1999CN1234054A Anthraquinone polysulfonamide colorants
11/02/1999US5977404 Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on di-, oligo- and polyol ethers
10/1999
10/28/1999WO1999054292A1 Novel sulphonated and oxy- or polyalkylene diphenol derivatives and their corresponding salts
10/28/1999WO1999054280A1 Cubane derivatives as metabotropic glutamate receptor antagonists and process for their preparation
10/27/1999EP0952147A1 Process for the photochemical sulfochlorination of gaseaous alkanes
10/27/1999CN1045954C Method for producing 6-chloro-3-amino toluene-4-sulfonic acid with 0-chloro-toluene
10/26/1999US5973195 Surfactants derived from 2-(2-hydroxyphenyl)benzenesulfinate and alkyl-substituted derivatives
10/26/1999US5973187 Positive-working chemical-sensitization photoresist composition
10/26/1999US5973085 Monomers and composition which can be crosslinked and crosslinked polymers
10/21/1999CA2267609A1 Photochemical sulfochlorination process for gaseous alkanes
10/20/1999EP0950649A1 A process for preparing oxyalkylene derivatives in the presence of phosphine oxides
10/20/1999EP0950515A2 Heat-hardenable composition and planographic form plate using the composition
10/20/1999EP0788475B1 Process for producing isomer mixtures from o-phenoxyalkylhydroxyl amines or o-phenoxyalkyloximes
10/20/1999EP0765306B1 Alkyl sulfoacetate compositions and methods for preparing same
10/20/1999EP0746541B1 Taurine derivatives for use in cleanser compositions
10/20/1999CN1232443A Novel p-terphenyl compounds
10/19/1999US5969204 Diazotizing substituted monoamino benzenes, then reacting products with substituted p-divinylbiphenyls
10/19/1999US5969182 Preparation of substituted guanidine derivatives
10/19/1999US5968916 Agricultural insecticides, nematocides or miticides
10/19/1999US5968908 Restricted 9-cis retinoids
10/19/1999CA2169675C Water soluble polymers containing allyloxybenzenesulfonic acid monomer and methallyl sulfonic acid monomer
10/13/1999EP0949246A1 Process for preparing phenoxyphenylsulfonyl halides
10/13/1999EP0948480A1 Sulphonyl compounds for use as linkers in solid phase and combinatorial synthesis
10/13/1999EP0948479A1 Recovery of anhydrous alkanesulphonic acids
10/13/1999EP0777648B1 A process for preparing purified alkali metal salts of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate without isolation of intermediates
10/13/1999CN1231287A Benzosulfone derivatives
10/13/1999CN1231283A Process for preparing high basicity double-metal compounded sulfonate
10/13/1999CN1045592C Process for preparing diiscoctyl sodium sulfosuccinate
10/12/1999US5965757 Reacting 2,3-dihydro-1-oxocyclopentaphenanthrene with tosylhydrazide; reacting the tosylhydrazone compound with secondary amine/butyl lithium in toluene and tetrahydrofuran; intermediate for an titanium-n-silyl metallocene
10/12/1999US5965579 Antagonists of the neurotensin receptors; increasing affinity for human neurotensin receptors
10/12/1999US5965490 Novel compounds with improved selectivity to valuable crops and improved toxicological and environmental attributes; applying to control weeds by either preemergence or postemergence application
10/12/1999US5965320 Forming a positive photoresist layer on a substrate using a mixture of alkali-soluble resin and a phenol ester of 1,2-naphthoquinone(2)-diazide-6-sulfonic acid as aphotosensitive agent, patterning and developing
10/12/1999US5965121 Compounds and compositions for delivering active agents
10/12/1999US5965066 Indanylidene compounds, a process for their preparation and their use as UV absorbers
10/12/1999US5965054 Comprising salts consisting of alkyl substituted, nitrogen-containing heterocyclic delocalized aromatic cations, and their perfluoro derivatives; high energy, high voltage
10/07/1999WO1999050246A1 Protein-carbohydrate binding antagonists
10/06/1999EP0946500A1 Process for the preparation of n-(alkanoyl)aminoalkanoyloxy benzenesulfonates
10/06/1999CN1230940A Method for grafting substituted difluoromethyle group
10/06/1999CN1230542A Sidechain-bearing taxanes
10/06/1999CN1045432C Production method and equipment for sodium salt of methyl allyl sulfonic acid
10/05/1999US5962743 Reacting aromatic compounds with carboxylic acid
10/05/1999US5962726 Amphiphilic compounds with several hydrophilic and hydrophobic groups based on alkoxylated amines and/or amides and di-, oligo- or polycarboxylic acids
09/1999
09/30/1999DE19913336A1 New near infrared absorbing polyazo compounds used e.g. in recording media, photoconductors, filters, transducers or screens
09/29/1999EP0945433A1 Process for the preparation of acyloxyalkanesulfonic acids
09/29/1999EP0945431A2 Process and intermediates for the preparation of phenylacetic derivatives
09/29/1999EP0944590A2 Aminoguanidines and alkoxyguanidines as protease inhibitors
09/29/1999EP0553107B1 Protein kinase c modulators with anti-inflammatory and antiviral activity
09/28/1999US5959146 Tricyclic compounds
09/28/1999US5959103 Naphthofluorene compounds, intermediates, compositions, and methods
09/28/1999US5958971 Chemical compounds
09/28/1999US5958917 Benzofluorene compounds, intermediates, compositions, and methods
09/28/1999US5958916 Dihydronaphthalene and naphthalene compounds, intermediates, formulations, and methods
09/28/1999US5958516 Method for surface treating reinforcing material with aqueous carbodiimide containing composition
09/23/1999WO1999047496A1 Surfactants derived from 2-(2-hydroxyphenyl) benzenesulfinate
09/23/1999WO1999047495A1 Process for the preparation of sulphonated distyryl-biphenyl compounds
09/23/1999WO1999047488A1 Process for producing l-valine benzyl ester p-toluenesulfonate
09/22/1999EP0942938A1 Supported catalyst system, method for the production and use thereof in olefin polymerization
09/16/1999WO1999020640A3 High surface density covalent immobilization of oligonucleotide monolayers
09/15/1999CN1228851A Alkysulfonyloximes for high-resolution I-line photoresists of high sensitivity
09/15/1999CN1228765A New amidino derivatives and their use as thrombin inhibitors
09/15/1999CN1228417A Method for preparing omega-d-camphoresulfonic acid
09/14/1999US5952526 Reacting para blocked calixarenes with concentrated sulfuric acid to perform ipso-electrophilic substitution; form complexes, adducts and inclusion compounds; heat and chemical resistance
09/14/1999US5952524 Process
09/14/1999US5952521 Surfactants and hydrophilic colloid compositions and materials
09/14/1999US5952350 Naphthyl compounds and compositions, as estrogen receptor binding agents
09/14/1999CA2144125C Use of sulfonic acids as antiageing agents in a cosmetic or dermatologic composition
09/14/1999CA2015634C Process for preparing perfluoroalkenyl sulfonyl fluorides
09/08/1999EP0939627A1 Pentafluorobenzenesulfonamides and analogs
09/08/1999EP0790981B1 Aryloxycycloalkenyl and aryloxyiminocycloalkenylhydroxyureas as 5-lipoxygenase inhibitors
09/02/1999DE19809166A1 Enhancement of catalytic activity and selectivity of carbon-carbon bonding reactions in water or multiphase system
09/01/1999EP0939069A1 Method for the hydrolysis of a sulphonic acid ester in hydrocarbon substrate and recovery of the corresponding sulphonic acid
09/01/1999EP0938488A1 Phosphine ligands
08/1999
08/31/1999US5945091 Photo-stable cosmetic and pharmaceutical formulations containing UV-filters
08/25/1999EP0937710A1 Method for producing an optically active phenylpropionic acid derivative
08/25/1999EP0937027A1 Alpha-branched fluoroalkylcarbonyl fluorides and their derivatives
08/25/1999EP0770596B1 Novel amine compound and detergent composition containing the same
08/25/1999EP0706511B1 Preparation of ammonium hydroxyalkyl/alkanoylalkyl sulfonates
08/25/1999CN1044808C Process for industrialized production of 1-naphthol-4-sulfonic acid and sodium salt thereof
08/24/1999US5942635 By reacting alkali metal salts of amino carboxylic acids and amino sulfonic acids, respectively with carbonyl halides in a reactor designed as a circulating circuit, with temperature control and continuous discharging; space/time yield
08/19/1999WO1999041292A1 Fluorinated ionomers and their uses
08/19/1999WO1999024394A3 Compounds for the antemortem diagnosis of alzheimer's disease and in vivo imaging and prevention of amyloid deposition
08/19/1999CA2319543A1 Fluorinated ionomers and their uses
08/18/1999EP0935486A1 Aqueous film-forming foam compositions